mmc-utils: update to latest git head

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

utils/mmc-utils/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://git.kernel.org/pub/scm/utils/mmc/mmc-utils.git
-PKG_SOURCE_DATE:=2021-10-01
-PKG_SOURCE_VERSION:=7769a4d7abe339ce273c13a203394a79a11fcff9
-PKG_MIRROR_HASH:=4feb754875b680dfd815e1776e308d3296be84e4a345d9062677d5e7ee5490ed
+PKG_SOURCE_DATE:=2021-12-11
+PKG_SOURCE_VERSION:=a1b233c2a31baa5b77cb67c0c3be4767be86f727
+PKG_MIRROR_HASH:=3a1b75afd51f22054bc06d5dce79408c0c20b1f26b85251c8964bbc1e04a4b4b
 
 PKG_LICENSE:=GPL-2.0-only
 PKG_LICENSE_FILES:=